Galvanic battery.



R. SCHUSTER, GALVANIC BATTERY. APPLICATION HLEUMAR. a, 1917.

Patented; Sept. 25, 1917.

Me@ j [Invalid/[filiaal A him/ENTR mar se IPAENT CUIBIIIIC.,

y:RICHARD SCEIUSTER, OF PUPPLING, BAVARIA, GERMANY, ASSIGNOR, TO SCHUSTER- PATENT-GESELLSCHAFT Ill/I. B. I-I., OF BERLIN, GERMANY. A

GIJVANIC BATTERY'.

Application filed March 3, 1917. Serial No. 152,351.

To all whom 'it may concern:

Be it known that I, RICHARD ScHUsrnR, a subject of the German Emperor, and residing at Puppling, Bavaria, German Eme f supports the annular carbon element f which 55 ,forations z' is provided at about the normal pire, have invented certain new and uselevel of the cathode electrolyte and that of ful Improvements in Galvanic Batteries, of the uppermost ring of carbon ports, as 60 which the following is a specification.

The present invention has reference to improvements in galvanic primary batteries clearly shown in the drawing. 0 rIhe operation of the cell is the following: The electrolyte II diusing through lo and relates more particularly to improvethe upper portion Z of the porous cup ments in the type of battery described by me in my pending application for a United yStates patent filed December 16, 1915, Serial Number 67,195, and the particular object of the present invention is to do away with certain disadvantages attaching to the use of the two-part standpipethere described as serving to receive the products of decomposition to relieve the internal resistance of the cell.

'Ihe two-part standpipe of my prior invention has the drawback that together with the waste productsl also fresh parts of the active electrolytes are eliminated, which, obviously, unduly weakens the action and the life of the cell.

According to the present invention I dis- 'card the overfiow pipe within the outer standpipe and provide the latter with a series of annularly disposed passages or ports through which the eliminated decom-r position "vproducts, water and salts, can freely pass over into the interior of the onepart standpipe.

The invention will best be understood when described with reference to the accompanying drawing, which shows ay vertical section through a cell built-up according to my invention.

The conventional outer container w of impervious material, is closed by the proiled cover plate c and is provided with bottom rests b for supporting the porous cell c. The latter, which for purposes fully del scribed in another co-pending application is of varying cross-section or permeability, allows the outer electrolyte II, containing the zinc anode e, to diifuse through its upper portion d of reduced resistance to the electrolyte I, containing the carbon cathode JF. The standpipe g, which may be of any suitable shape and not necessarily of the bellied type illustrated, rests on the bottom of the porous cup and is surrounded by or spreads over the surface of the electrolyte I and, combining with it, forms water and salts, which owing to the higher specificl gravity of the electrolyte I cannot sink, but would raise its level until the porous cup would overflow. Moreover, the electrolyte 7o I would be diluted and a counter pressure would be set up within the cell which would interfere with the proper generation of o Xygen by the electrolyte I. 'Ihe consumption of zinc would also be enhanced'by rea- 7u son of the acid in the electrolyte I attacking the zinc member.

In the new battery the salt and water formatlons, owing to their lower specific gravity relative to the electrolyte I, will 8o readily flow over through the perforations z' into the central standpipe g.

What I claim as new is 1. In combination with a galvanic battery having an anode electrolyte and a 85 cathode electrolyte, means for eliminating the products of decomposition thereof consisting of aperforated standpipe within the cathode electrolyte.

2. In combination with a `galvanic battery having an anode electrolyte and a cathode electrolyte, means for eliminating the products of decomposition thereof, consisting of an impervious standpipe `Within said cathode electrolyte having overow perforations at the height of the normal cathode electrolyte level.

3. In a galvanic battery, in combination, an. outer container, a porous cell, an anode and an electrolyte in the space between said outer container and said porous cell, a cathode and an electrolyte in said porous cell, and a standpipe having a ring of radially directed perforations arranged within said cathode electrolyte, substantially as and for the purpose set forth.

4. In a galvanic battery, in combination, an outer container, a porous cell, an anode and an electrolyte in the space between said outer container and said porous cell, a cathode and an electrolyte in said porous cell, said cathode having series of radially di- 5 'rected ports, and a staudpipe having overflow perforations within said cathode electrolyte, the uppermost of said cathode ports,

\ meme@ the said overHoW perforations and the normal level of said cathode electrolyte being in substantial alinement.

In witness whereof I have hereunto sei'I my hand.

`RICHARD SCHUSTER. 

